"Even though it might sound harsh and impolitic, here is the bottom line: if you don't want to get shot, tased, pepper-sprayed, struck with a baton or thrown to the ground, just do what I tell you," he writes. "Don't argue with me, don't call me names, don't tell me that I can't stop you, don't say I'm a racist pig, don't threaten that you'll sue me and take away my badge. Don't scream at me that you pay my salary, and don't even think of aggressively walking towards me. Most field stops are complete in minutes. How difficult is it to cooperate for that long?"